[linux.git] / drivers / mfd / 88pm805.c

/*
 * Base driver for Marvell 88PM805
 *
 * Copyright (C) 2012 Marvell International Ltd.
 * Haojian Zhuang <[email protected]>
 * Joseph(Yossi) Hanin <[email protected]>
 * Qiao Zhou <[email protected]>
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License. See the file "COPYING" in the main directory of this
 * archive for more details.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/irq.h>
#include <linux/mfd/core.h>
#include <linux/mfd/88pm80x.h>
#include <linux/slab.h>
#include <linux/delay.h>

static const struct i2c_device_id pm80x_id_table[] = {
	{"88PM805", 0},
	{} /* NULL terminated */
};
MODULE_DEVICE_TABLE(i2c, pm80x_id_table);

/* Interrupt Number in 88PM805 */
enum {
	PM805_IRQ_LDO_OFF,	/*0 */
	PM805_IRQ_SRC_DPLL_LOCK,	/*1 */
	PM805_IRQ_CLIP_FAULT,
	PM805_IRQ_MIC_CONFLICT,
	PM805_IRQ_HP2_SHRT,
	PM805_IRQ_HP1_SHRT,	/*5 */
	PM805_IRQ_FINE_PLL_FAULT,
	PM805_IRQ_RAW_PLL_FAULT,
	PM805_IRQ_VOLP_BTN_DET,
	PM805_IRQ_VOLM_BTN_DET,
	PM805_IRQ_SHRT_BTN_DET,	/*10 */
	PM805_IRQ_MIC_DET,	/*11 */

	PM805_MAX_IRQ,
};

static struct resource codec_resources[] = {
	/* Headset microphone insertion or removal */
	DEFINE_RES_IRQ_NAMED(PM805_IRQ_MIC_DET, "micin"),

	/* Audio short HP1 */
	DEFINE_RES_IRQ_NAMED(PM805_IRQ_HP1_SHRT, "audio-short1"),

	/* Audio short HP2 */
	DEFINE_RES_IRQ_NAMED(PM805_IRQ_HP2_SHRT, "audio-short2"),
};

static const struct mfd_cell codec_devs[] = {
	{
	 .name = "88pm80x-codec",
	 .num_resources = ARRAY_SIZE(codec_resources),
	 .resources = &codec_resources[0],
	 .id = -1,
	 },
};

static struct regmap_irq pm805_irqs[] = {
	/* INT0 */
	[PM805_IRQ_LDO_OFF] = {
		.mask = PM805_INT1_HP1_SHRT,
	},
	[PM805_IRQ_SRC_DPLL_LOCK] = {
		.mask = PM805_INT1_HP2_SHRT,
	},
	[PM805_IRQ_CLIP_FAULT] = {
		.mask = PM805_INT1_MIC_CONFLICT,
	},
	[PM805_IRQ_MIC_CONFLICT] = {
		.mask = PM805_INT1_CLIP_FAULT,
	},
	[PM805_IRQ_HP2_SHRT] = {
		.mask = PM805_INT1_LDO_OFF,
	},
	[PM805_IRQ_HP1_SHRT] = {
		.mask = PM805_INT1_SRC_DPLL_LOCK,
	},
	/* INT1 */
	[PM805_IRQ_FINE_PLL_FAULT] = {
		.reg_offset = 1,
		.mask = PM805_INT2_MIC_DET,
	},
	[PM805_IRQ_RAW_PLL_FAULT] = {
		.reg_offset = 1,
		.mask = PM805_INT2_SHRT_BTN_DET,
	},
	[PM805_IRQ_VOLP_BTN_DET] = {
		.reg_offset = 1,
		.mask = PM805_INT2_VOLM_BTN_DET,
	},
	[PM805_IRQ_VOLM_BTN_DET] = {
		.reg_offset = 1,
		.mask = PM805_INT2_VOLP_BTN_DET,
	},
	[PM805_IRQ_SHRT_BTN_DET] = {
		.reg_offset = 1,
		.mask = PM805_INT2_RAW_PLL_FAULT,
	},
	[PM805_IRQ_MIC_DET] = {
		.reg_offset = 1,
		.mask = PM805_INT2_FINE_PLL_FAULT,
	},
};

static int device_irq_init_805(struct pm80x_chip *chip)
{
	struct regmap *map = chip->regmap;
	unsigned long flags = IRQF_ONESHOT;
	int data, mask, ret = -EINVAL;

	if (!map || !chip->irq) {
		dev_err(chip->dev, "incorrect parameters\n");
		return -EINVAL;
	}

	/*
	 * irq_mode defines the way of clearing interrupt. it's read-clear by
	 * default.
	 */
	mask =
	    PM805_STATUS0_INT_CLEAR | PM805_STATUS0_INV_INT |
	    PM800_STATUS0_INT_MASK;

	data = PM805_STATUS0_INT_CLEAR;
	ret = regmap_update_bits(map, PM805_INT_STATUS0, mask, data);
	/*
	 * PM805_INT_STATUS is under 32K clock domain, so need to
	 * add proper delay before the next I2C register access.
	 */
	usleep_range(1000, 3000);

	if (ret < 0)
		goto out;

	ret =
	    regmap_add_irq_chip(chip->regmap, chip->irq, flags, -1,
				chip->regmap_irq_chip, &chip->irq_data);

out:
	return ret;
}

static void device_irq_exit_805(struct pm80x_chip *chip)
{
	regmap_del_irq_chip(chip->irq, chip->irq_data);
}

static struct regmap_irq_chip pm805_irq_chip = {
	.name = "88pm805",
	.irqs = pm805_irqs,
	.num_irqs = ARRAY_SIZE(pm805_irqs),

	.num_regs = 2,
	.status_base = PM805_INT_STATUS1,
	.mask_base = PM805_INT_MASK1,
	.ack_base = PM805_INT_STATUS1,
};

static int device_805_init(struct pm80x_chip *chip)
{
	int ret = 0;
	struct regmap *map = chip->regmap;

	if (!map) {
		dev_err(chip->dev, "regmap is invalid\n");
		return -EINVAL;
	}

	chip->regmap_irq_chip = &pm805_irq_chip;

	ret = device_irq_init_805(chip);
	if (ret < 0) {
		dev_err(chip->dev, "Failed to init pm805 irq!\n");
		goto out_irq_init;
	}

	ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
			      ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
			      NULL);
	if (ret < 0) {
		dev_err(chip->dev, "Failed to add codec subdev\n");
		goto out_codec;
	} else
		dev_info(chip->dev, "[%s]:Added mfd codec_devs\n", __func__);

	return 0;

out_codec:
	device_irq_exit_805(chip);
out_irq_init:
	return ret;
}

static int pm805_probe(struct i2c_client *client)
{
	int ret = 0;
	struct pm80x_chip *chip;
	struct pm80x_platform_data *pdata = dev_get_platdata(&client->dev);

	ret = pm80x_init(client);
	if (ret) {
		dev_err(&client->dev, "pm805_init fail!\n");
		goto out_init;
	}

	chip = i2c_get_clientdata(client);

	ret = device_805_init(chip);
	if (ret) {
		dev_err(chip->dev, "Failed to initialize 88pm805 devices\n");
		goto err_805_init;
	}

	if (pdata && pdata->plat_config)
		pdata->plat_config(chip, pdata);

err_805_init:
	pm80x_deinit();
out_init:
	return ret;
}

static void pm805_remove(struct i2c_client *client)
{
	struct pm80x_chip *chip = i2c_get_clientdata(client);

	mfd_remove_devices(chip->dev);
	device_irq_exit_805(chip);

	pm80x_deinit();
}

static struct i2c_driver pm805_driver = {
	.driver = {
		.name = "88PM805",
		.pm = pm_sleep_ptr(&pm80x_pm_ops),
		},
	.probe = pm805_probe,
	.remove = pm805_remove,
	.id_table = pm80x_id_table,
};

static int __init pm805_i2c_init(void)
{
	return i2c_add_driver(&pm805_driver);
}
subsys_initcall(pm805_i2c_init);

static void __exit pm805_i2c_exit(void)
{
	i2c_del_driver(&pm805_driver);
}
module_exit(pm805_i2c_exit);

MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM805");
MODULE_AUTHOR("Qiao Zhou <[email protected]>");
MODULE_LICENSE("GPL");
Commit	Line	Data
70c6cce0 QZ	1	/*
	2	* Base driver for Marvell 88PM805
	3	*
	4	* Copyright (C) 2012 Marvell International Ltd.
	5	* Haojian Zhuang <[email protected]>
	6	* Joseph(Yossi) Hanin <[email protected]>
	7	* Qiao Zhou <[email protected]>
	8	*
	9	* This file is subject to the terms and conditions of the GNU General
	10	* Public License. See the file "COPYING" in the main directory of this
	11	* archive for more details.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	21	*/
	22
	23	#include <linux/kernel.h>
	24	#include <linux/module.h>
	25	#include <linux/i2c.h>
	26	#include <linux/irq.h>
	27	#include <linux/mfd/core.h>
	28	#include <linux/mfd/88pm80x.h>
	29	#include <linux/slab.h>
	30	#include <linux/delay.h>
	31
70c6cce0	32	static const struct i2c_device_id pm80x_id_table[] = {
03dcc544	33	{"88PM805", 0},
31b3ffbd	34	{} /* NULL terminated */
70c6cce0 QZ	35	};
	36	MODULE_DEVICE_TABLE(i2c, pm80x_id_table);
	37
	38	/* Interrupt Number in 88PM805 */
	39	enum {
	40	PM805_IRQ_LDO_OFF, /0 /
	41	PM805_IRQ_SRC_DPLL_LOCK, /1 /
	42	PM805_IRQ_CLIP_FAULT,
	43	PM805_IRQ_MIC_CONFLICT,
	44	PM805_IRQ_HP2_SHRT,
	45	PM805_IRQ_HP1_SHRT, /5 /
	46	PM805_IRQ_FINE_PLL_FAULT,
	47	PM805_IRQ_RAW_PLL_FAULT,
	48	PM805_IRQ_VOLP_BTN_DET,
	49	PM805_IRQ_VOLM_BTN_DET,
	50	PM805_IRQ_SHRT_BTN_DET, /10 /
	51	PM805_IRQ_MIC_DET, /11 /
	52
	53	PM805_MAX_IRQ,
	54	};
	55
	56	static struct resource codec_resources[] = {
ba4672ad ZL	57	/* Headset microphone insertion or removal */
	58	DEFINE_RES_IRQ_NAMED(PM805_IRQ_MIC_DET, "micin"),
	59
	60	/* Audio short HP1 */
	61	DEFINE_RES_IRQ_NAMED(PM805_IRQ_HP1_SHRT, "audio-short1"),
	62
	63	/* Audio short HP2 */
	64	DEFINE_RES_IRQ_NAMED(PM805_IRQ_HP2_SHRT, "audio-short2"),
70c6cce0 QZ	65	};
70c6cce0 QZ	66
04e02417	67	static const struct mfd_cell codec_devs[] = {
70c6cce0 QZ	68	{
	69	.name = "88pm80x-codec",
	70	.num_resources = ARRAY_SIZE(codec_resources),
	71	.resources = &codec_resources[0],
	72	.id = -1,
	73	},
	74	};
	75
	76	static struct regmap_irq pm805_irqs[] = {
	77	/* INT0 */
	78	[PM805_IRQ_LDO_OFF] = {
	79	.mask = PM805_INT1_HP1_SHRT,
	80	},
	81	[PM805_IRQ_SRC_DPLL_LOCK] = {
	82	.mask = PM805_INT1_HP2_SHRT,
	83	},
	84	[PM805_IRQ_CLIP_FAULT] = {
	85	.mask = PM805_INT1_MIC_CONFLICT,
	86	},
	87	[PM805_IRQ_MIC_CONFLICT] = {
	88	.mask = PM805_INT1_CLIP_FAULT,
	89	},
	90	[PM805_IRQ_HP2_SHRT] = {
	91	.mask = PM805_INT1_LDO_OFF,
	92	},
	93	[PM805_IRQ_HP1_SHRT] = {
	94	.mask = PM805_INT1_SRC_DPLL_LOCK,
	95	},
	96	/* INT1 */
	97	[PM805_IRQ_FINE_PLL_FAULT] = {
	98	.reg_offset = 1,
	99	.mask = PM805_INT2_MIC_DET,
	100	},
	101	[PM805_IRQ_RAW_PLL_FAULT] = {
	102	.reg_offset = 1,
	103	.mask = PM805_INT2_SHRT_BTN_DET,
	104	},
	105	[PM805_IRQ_VOLP_BTN_DET] = {
	106	.reg_offset = 1,
	107	.mask = PM805_INT2_VOLM_BTN_DET,
	108	},
	109	[PM805_IRQ_VOLM_BTN_DET] = {
	110	.reg_offset = 1,
	111	.mask = PM805_INT2_VOLP_BTN_DET,
	112	},
	113	[PM805_IRQ_SHRT_BTN_DET] = {
	114	.reg_offset = 1,
	115	.mask = PM805_INT2_RAW_PLL_FAULT,
	116	},
	117	[PM805_IRQ_MIC_DET] = {
	118	.reg_offset = 1,
	119	.mask = PM805_INT2_FINE_PLL_FAULT,
	120	},
	121	};
	122
f791be49	123	static int device_irq_init_805(struct pm80x_chip *chip)
70c6cce0 QZ	124	{
70c6cce0 QZ	125	struct regmap *map = chip->regmap;
1ef5677e	126	unsigned long flags = IRQF_ONESHOT;
70c6cce0 QZ	127	int data, mask, ret = -EINVAL;
	128
	129	if (!map \|\| !chip->irq) {
	130	dev_err(chip->dev, "incorrect parameters\n");
	131	return -EINVAL;
	132	}
	133
	134	/*
	135	* irq_mode defines the way of clearing interrupt. it's read-clear by
	136	* default.
	137	*/
	138	mask =
	139	PM805_STATUS0_INT_CLEAR \| PM805_STATUS0_INV_INT \|
	140	PM800_STATUS0_INT_MASK;
	141
	142	data = PM805_STATUS0_INT_CLEAR;
	143	ret = regmap_update_bits(map, PM805_INT_STATUS0, mask, data);
	144	/*
	145	* PM805_INT_STATUS is under 32K clock domain, so need to
	146	* add proper delay before the next I2C register access.
	147	*/
dc543929	148	usleep_range(1000, 3000);
70c6cce0 QZ	149
	150	if (ret < 0)
	151	goto out;
	152
	153	ret =
	154	regmap_add_irq_chip(chip->regmap, chip->irq, flags, -1,
	155	chip->regmap_irq_chip, &chip->irq_data);
	156
	157	out:
	158	return ret;
	159	}
	160
	161	static void device_irq_exit_805(struct pm80x_chip *chip)
	162	{
	163	regmap_del_irq_chip(chip->irq, chip->irq_data);
	164	}
	165
	166	static struct regmap_irq_chip pm805_irq_chip = {
	167	.name = "88pm805",
	168	.irqs = pm805_irqs,
	169	.num_irqs = ARRAY_SIZE(pm805_irqs),
	170
	171	.num_regs = 2,
	172	.status_base = PM805_INT_STATUS1,
	173	.mask_base = PM805_INT_MASK1,
	174	.ack_base = PM805_INT_STATUS1,
	175	};
	176
f791be49	177	static int device_805_init(struct pm80x_chip *chip)
70c6cce0 QZ	178	{
	179	int ret = 0;
	180	struct regmap *map = chip->regmap;
	181
	182	if (!map) {
	183	dev_err(chip->dev, "regmap is invalid\n");
	184	return -EINVAL;
	185	}
	186
70c6cce0 QZ	187	chip->regmap_irq_chip = &pm805_irq_chip;
	188
	189	ret = device_irq_init_805(chip);
	190	if (ret < 0) {
	191	dev_err(chip->dev, "Failed to init pm805 irq!\n");
	192	goto out_irq_init;
	193	}
	194
	195	ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
0848c94f MB	196	ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
0848c94f MB	197	NULL);
70c6cce0 QZ	198	if (ret < 0) {
	199	dev_err(chip->dev, "Failed to add codec subdev\n");
	200	goto out_codec;
	201	} else
	202	dev_info(chip->dev, "[%s]:Added mfd codec_devs\n", __func__);
	203
	204	return 0;
	205
	206	out_codec:
	207	device_irq_exit_805(chip);
	208	out_irq_init:
	209	return ret;
	210	}
	211
61d1be25	212	static int pm805_probe(struct i2c_client *client)
70c6cce0 QZ	213	{
	214	int ret = 0;
	215	struct pm80x_chip *chip;
334a41ce	216	struct pm80x_platform_data *pdata = dev_get_platdata(&client->dev);
70c6cce0	217
03dcc544	218	ret = pm80x_init(client);
70c6cce0 QZ	219	if (ret) {
	220	dev_err(&client->dev, "pm805_init fail!\n");
	221	goto out_init;
	222	}
	223
	224	chip = i2c_get_clientdata(client);
	225
	226	ret = device_805_init(chip);
	227	if (ret) {
03dcc544	228	dev_err(chip->dev, "Failed to initialize 88pm805 devices\n");
70c6cce0 QZ	229	goto err_805_init;
	230	}
	231
2b274fe5	232	if (pdata && pdata->plat_config)
70c6cce0 QZ	233	pdata->plat_config(chip, pdata);
	234
	235	err_805_init:
306df798	236	pm80x_deinit();
70c6cce0 QZ	237	out_init:
	238	return ret;
	239	}
	240
ed5c2f5f	241	static void pm805_remove(struct i2c_client *client)
70c6cce0 QZ	242	{
	243	struct pm80x_chip *chip = i2c_get_clientdata(client);
	244
	245	mfd_remove_devices(chip->dev);
	246	device_irq_exit_805(chip);
	247
306df798	248	pm80x_deinit();
70c6cce0 QZ	249	}
	250
	251	static struct i2c_driver pm805_driver = {
	252	.driver = {
46223a19	253	.name = "88PM805",
19755a0a	254	.pm = pm_sleep_ptr(&pm80x_pm_ops),
70c6cce0	255	},
9816d859	256	.probe = pm805_probe,
84449216	257	.remove = pm805_remove,
70c6cce0 QZ	258	.id_table = pm80x_id_table,
	259	};
	260
	261	static int __init pm805_i2c_init(void)
	262	{
	263	return i2c_add_driver(&pm805_driver);
	264	}
	265	subsys_initcall(pm805_i2c_init);
	266
	267	static void __exit pm805_i2c_exit(void)
	268	{
	269	i2c_del_driver(&pm805_driver);
	270	}
	271	module_exit(pm805_i2c_exit);
	272
	273	MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM805");
	274	MODULE_AUTHOR("Qiao Zhou <[email protected]>");
	275	MODULE_LICENSE("GPL");